''Penstemon triflorus'', Heller's beardtongue or Heller's penstemon, is a

penstemon ''Penstemon'' , the beardtongues, is a large genus of roughly 250 species of flowering plants native mostly to the Nearctic, but with a few species also found in the North American portion of the Neotropics. It is the largest genus of flowering ...

notable for its showy, purple

blossom In botany, blossoms are the flowers of stone fruit trees (genus ''Prunus'') and of some other plants with a similar appearance that flower profusely for a period of time in spring. Colloquially, flowers of orange are referred to as such as wel ...

Distribution and habitat

Heller's beardtongue grows on the Edwards Plateau of Texas. triflorus Flora of Texas {{Plantaginaceae-stub